Valve device.



PAIENTED JULY 26, 1904. G. H. WATTERS.

VALVE DEVICE.

APPLICIATION FILED NOV. 2, 1903.

2 SHEETSSHEET 1.

NO MODEL.

W M MW M N Mu Wn E PATENTED JULY 26, 1904.

C. H. WATTERS.

VALVE DEVICE.

APPLIOATION FILED NOV. 2, 1903.

N0 MODEL.

2 SHEETS-SHEET 2.

m a WWW CHARLES H. lVA-TTERS,

Patented July 26, 1904.

PATENT OFFICE.

OF CHICAGO, ILLINOIS.

VALVE DEVICE.

SPECIFICATION forming part of Letters Patent No. 765,867, dated July 26,1904.

Application filed November 2, 1903. Serial No. 179,429. (No model.)

To (all whom, it may concern.-

Be it known that I, CHARLns H. WATTERS, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Valve Devices, of which thefollowing is a specification.

My invention relates to an improvement in the class of valve devices forcontrolling hydraulic pressure, though it is also useful for controllingother varieties of pressure; and my primary object is to provide asimplified construction of valve device in the class referred to wherebyparts shall be rendered reversible or interchangeable for the purpose ofincreasing the durability of the device, whereby the need ofstuffing-boxes shall be dispensed with, and whereby the dimensions ofthe device may be reduced to the minimum for the service it is requiredto perform.

Referring to the accompanying drawings, Figure 1 is a view in verticallongitudinal sectional elevation, the section being taken at the line 1on Fig. 2 and viewed in the direction of the arrow; and Fig. 2, asection taken at the line 2 on Fig. 1 and viewed in the direction of thearrow.

A is the shell or casing, having the ports B, B, and B all showninternally screw-threaded, and within the casing is the chamber C. Eachend of the casing at right angles to the ports B and B has screwed intoit at opposite sides of its longitudinal center chambered plugs to b anda 7) to receive the ends of tubular longitudinally-reciprocablevalvestems D and E, passing, respectively, through pairs of annularvalve-seats 0 c and (Z (Z, screwed into place. The stems are providednear their relatively opposite ends with disk valves 6 e and ff, shownscrewed upon the stems and fastened by nuts 11, though the valves 0 andf may be formed as integral parts of the stems, if desired. The valves 0and f seat outwardly against the inner faces of their respective seats 0and (Z, and the valves 0 and f seat inwardly against the outer faces oftheir respective seats 0 and d, each valve being provided, preferably onboth of its faces, with annular packing-rings of leather or=othersuitable gnaterial, let into abling the dimensions of the device to bercduced accordingly, or, in other words, increasing the efiiciency ofthe valve device of given dimensions. At opposite sides of the center ofeach valve-stem it is provided with collars is, forming stops betweenwhich the stems are embraced by the bifurcated ends of a head Cr, keyedon an oscillatory stem H, which is journaled at its inner end in abushing Z, confined centrally in aspider Z, formed in the casing at theport B the oscillatory stem extending out through a stuffing-box m in aplug 02, screwed into the open side of the valve-casing opposite thatcontaining the port B and being provided with a handle I.

To explain the operation of the device, it may be regarded as beingplaced in position to render uppermost the port B as the inletport forhydraulic pressure, which on entering through that port separates at thedivider e' thereat into two streams to flow in opposite directions tothe valves 0 and e, which have been preparatorily unseated and thevalves f and f at the same time seated by suitably turning the head Grat the handle I to turn the stem H. The valves are balanced by thepressure in contrary directions against those on opposite ends of thestems. The water enters the chamber C through the valve-seats 0 c anddischarges from the chamber through the outlet-port B to the engine ormechanism to be driven by hydraulic power. To discharge water, as thereturn water from said engine admitted to the chamber C through the portB the handle I is turned in the direction opposite that described toclose the valves e e and open the valves f f, thus to permit that waterto flow through the discharge-port B. Obviously, however, either port 13or B may be used as the inlet, the primary purpose of providing the twodirectly opposite each other being for this reversible purpose, and thelower port B also serves for draining the valve device. \Vater thatenters the chambers in the plugs c a and Z) I) does not obstruct orcushion the longitudinal movements of thehollow valve-stems, because intheir movements they displace such water into the passages through them,so that there is no necessity for providing against the entrance ofwater into the plug-chambers, and the necessity of providingstufling-boxes, of which four would otherwise be required, is dispensedwith. Moreover, the valve-stems are interchangeable by arranging thestem It in the position of the stem I), thereby furnishing to each valvea new seat when the old becomes worn, and thus doubling the life of thevalve device, which is also increased by the reversibility of the portsB and B, and the valves themselves, or at least those which are notintegral with their stems, may be taken off and reversed to double thelife of their usefulness. These purposes are all accomplished by thesimple construction of my improved valve device shown and hereindescribed, though the details of construction may be variously modifiedby those skilled in the art without departure from the invention which,therefore, is not intended to be limited to such details.

Ducts 0 (shown in Fig. 1) maybe provided, if desired, to affordcommunication from behind the valve stem ends with the valvechamber forevacuating the plug-chambers of surplus water.

WVhat I claim as new, and desire to secure by Letters Patent, is-

1. In a valve device, the combination with a casing containing achamber, of a passage in the casing-wall leading entirely about saidchamber, an inlet-port and outlet-ports and opposite valve-seats formingpairs, a longitudinally-reciprocable stem for each pair of said seatscarrying valves seating, respectively, against the inner and outer facesof the members of each pair, and a handle connected with said stems tomove them in relatively contrary directions by turning the handle.

2. In a valve device, the combination with a casing having chamberedends and containing a chamber, of a passage in the casing-wall leadingentirely about said chamber, an inletport and outlet-ports and oppositevalve-seats forming pairs, a tubular longitudinally-reciprocable stemfor each pair of said seats, supported at its ends in opposite saidcasing ends and carrying valves seating, respectively, against the innerand outer faces of the members of such pair, and a handle connected withsaid stems to move them in relatively contrary directions by turning thehandle.

3. In a valve device, the combination with a casing containing achamber, of a passage in the casing-wall leading entirely about saidchamber, an inlet-port and outletports and opposite valve-seats formingpairs, a longitudinally-rcciprocable stem for each pair of said seatscarrying valves seating, respectively, against the inner and outer facesof the members of such pair, each stem with the valves thereon beinginterchangeable from one pair to the other of said seats, and a handleconnected with said stems to move them in relatively contrary directionsby turning the handle.

4:. In a valve device, the combination with a casing containing achamber, of opposite valveseats forming pairs, alongitudinally-rcciprocable stem for each pair of said seats carryingvalves seating, respectively, against the inner and. outer faces of themembers of such pair, a handle connected with said stems to move them inrelatively contrary directions by turning the handle, an inlet-port andoutlet-ports, and a passage in the casing-wall leading entirely aboutsaid chamber having controllable communication therewith through saidvalves and connecting said ports and. provided with a divider fordirecting the flow in different directions through it from theinletport.

5. In a valve device, the combination with a casing containing achamber, of opposite valveseats forming pairs, alongitudinally-reciprocable stem for each pair of said seats carryingvalves seating, respectively, against the inner and outer faces of themembers of such pair, a handle connected with said stems to move them inrelatively contrary directions by turning the handle, an inlet-port andan outletport formed opposite each other in the casing, a passage in thecasing-wall leading entirely about said chamber having controllablecommunication therewith through said valves and provided at each saidport with a divider for directing the flow in different directionsthrough it from the inlet-port, and an outletport between the said twoports.

6. In avalve device, the combination with a casing having chambered endsand containing a chamber, of opposite valve-seats forming pairs, atubular longitudinally-reciprocable stem for each pair of said seats,supported at its ends in opposite said casing ends and carrying valvesseating, respectively, against the inner and outer faces of the membersof such pair, a handle connected with said stems to move them inrelatively contrary directions by turning the handle, an inlet-port andan outletport and a passage in the casing-Wall leading entirely aboutsaid chamber having controllable communication therewith through saidvalves and connecting said ports and provided with a divider fordirecting the fiow in different directions through it from theinlet-port, and an outlet-port between the said two ports.

7. A valve device, comprising, in combinaprovided with one or moredividers for directing the flow in different directions through it fromthe inlet-port, an outlet-port between the said tWo ports, and anoscillatory stem provided with an operating-handle and carrying a headengaging said Valve-stems to move them in relatively contrary directionsby turning the handle.

CHARLES H. WATTERS.

In presence ot' WALTER N. WINBERG, W. B. DAVIES.

